Lapping machine



1. Y. F|ELDS. LAPPING MACHINE.

APPLICATION FILED MAR. I4, 1922.

Patented June 6, 1922.

"To all whom it mag concernf Be it known that 1, JAMES 'Y. FIELDs, a

1 UNITED TA S PATENT other. [1' 5' I JAMES Y., :rIELns', or DURHAM. NoRTHlomaom-nm;nssrenoniori oNE-mitr so; THOMAS Y. rmunmpr nnarrnm, NoR rn cnnommny a v nArrIn-e ma ma.

citizen of the United States of America,"and resident of Durham, in thecounty'ofDurham and State ofNorth Carolina, have invented certain new and useful Improve-f ments in Lapping Machines, of which the following is a specification. This invention relates'to cotton treating machinery in itsgeneral' application, an particularly to lapping machines in which the cotton is calendered, and has for-an ob,-

ject the provision of' means for shifting or" shipping the drive of calender rolls, to interrupt their motion, should conditions be abnormal as .to the material passing through i normally thick ory'unduly'reduced in thickor between the rolls; or in case of absence of material, which latter-might be occasioned by'the breaking 'ofithe lap or lack of material in the hopper or feedto form alap; the said invention being "furthermore I of utility to shift or shi p. the, gearing or drive when the-calender rolls are moved unduly, as mightqibe the casewhen-rr'the lap passing between "the? rolls .winds {around either of the rolls, or lwhen the lap is abness. 7 j a v It is a further object of this invention to produce a shipping or shifting mechanism which is mechanically: operated and which constitutes an auxiliary tothe usual manual" controls that throw'the gearing or drive 'into or out of operative positions; and in a more limited aspect, anobject ofthis invention is to produce novel means, associated with amain sidelever of machines of the character, efiectiv'e to communicate the motion of the said lever whenthe said motion is abnormal, to' the manually operated shifting element by which the elements of the drlve are'controlled. v With the foregoing and other objects in view, the invention consists in the details of construction, andin the arrangement and combination of parts .to be {herei after more fully set forth and-claimed. j In describing the invention in detail,"ref erence will be had to the accompanying drawings whereinlike characters denote correspondlng parts 1n the several vlews, and

in which -Fi ure' 1 illustrates a side elevation of a embodying the invention applied thereto;

Specification of Letters Patent. Patented Application filed March 191922. s ;ri 1iio.l543e3o'.:

" Figuilg illustrates-apfil Pectiveview-got it h device disconnected from'the machine;

Figure 3 illustrates-asectionalview-on the line, 3-3, 3 omitting construction in front of,

cated on opposite sides of the machine and asthe calender rolls separate from or -approach each other, their bearingsare guided j 1 o, I other? 'The'lowerrnostbearing for a ca lencler I i ,rollis 'supportedin a seatfor-med int-he 'fra'me. Ayokefis provided and this yoke ;and ;held in operative relation to one an-y comprises the'rods 7, ahead plate 7 and a base block- 101.' There are interposed filling a1 blocks 7? between-the several bearings and 1! between the'quppermost bearing and the and when they are allowed to approachfea'ch nect the headJ'Y andthebase block'1Q1,- it

goes -up "and down,

calender rolls, and a latch 11 is oscillatabl'e von a-pivotl2 and it has a lug 13 which engages a lug 1 4 which may be positioned in any appropriate placeto'hold the said start 'ing leve rg in' position to retain the gearing in engagement during the operation. of the "calender, rolls. When the latch is"r noved to .cause a disengagement ofthelugs 13 and 'le',

the starting lever automaticallydescendsfby gravity "to effect disasso'ciation of the driving :gear in order that the calender rolls will cometoirest. These elements are {of conventional'type and of wellknown arrangement," a so'that the details of construction by which head, 'and"-"therefore, as the-bearings a're 1 -forced 'apart,- they serve to raise thehea'd,

. v 8' ,o other, the-head descends; As the rods '7 -conblock is'connected to the lever 8*by pivotf-85- 8kan d as'the base block a r 'thelever 8is oscillated. i

The starting lever "10 is moved oroperated fto-shiftfthe gearing-of the drive forYthe Q the calender; rolls are driven, or'th'e means for shiftingthe gez tring by! the starting lever need not, it is thought,"be'further'fdisclosed.

In order to communicate themotion of mechanism as embodied in thisdisclosureot l thelever 8: (imparted to :it by 'themovement I fragmentiof a lapping machine with'a device ofthegcalender rolls) ftothe gear shifting end remote from the post, and this slot receives a pin 21 carried by the latch 11. The relation ofparts is such that during the normal operation of the device the link will slide on the pin without imparting motion to the lever, but upon abnormalfupward movement of the weightedjend'of theflever 1 8, the end of the slot will encounter the pin 1 21 and impart movement to thelink to disengage the lugs 13 and 14 and permit the startlng lever todrop and effect an uncoupling of the gearing. v 1

The lever 8 has a flexible element 22 con-- nected-to it by a coupling 23, although the manner of connecting'the flexible member may be modified to suit particular requirements, and the saidflexible element operates over an idle pulley 24c rotatable on astud f 25 which may be anchored to. any part of the frame'of the machine, and the said flexible element is attached to an extension 26 of l the latch 11' below its pivot, and shouldthe outer end of the lever .8 descend abnor-.

mally, theflexible member; will exert a pull on thelatch to cause a disengagementof the lugs 18 and 14, and this will likewise result in a release of the starting lever to efiect a disengagement of the gear-mg.

The weight 27 on the outer end of the lever serves to balance thelever, when the calender rolls operate 'normally, but undue separation of the calender rolls or undue proximity of the peripheries of the calender rolls to each other will result in imparting .an abnormalmovementto the' lever and will result in tripping the latch in the'manner stated. ,7 It is to be remembered that theprimary I object of this invention is to produce laps ofuniform thicknesses, and that when varia tion occurs in the thicknesses of the laps beyo'nd predetermined degrees, the operation of thecalender rolls will be interrupted.

-' The frame is cutaway as'at 8 to form a clearance for the movement ofthe base block. I claim: a a i i 1. In a lapping machine, lcalenderrolls mounted for movement toward and away from each other, a lever oscillatably mounted in proximity to the calender rolls, means for communicating themotion of the calender rolls asthey approach or recede with relation toeach other, to the lever, including;

' means for starting and stopping the driving mechanism, a starting-lever for controlling the last mentioned means, a latch for holding the starting lever while the driving mechanismis operating, a link having a slot near one end, a pin on the latch extending into the slot of the link, means for connect-. ing the link to the first mentioned lever, a flexible element operating over a pulley and having one end connected to the first mentioned lever and the other end connected to the latch whereby a pull on the flexible member will oscillate the latch and release the starting lever..

2. Ina lapping machine, calenderrolls mounted for movement towardandjaway y from each other, an oscillatably-mounted lever moved'by the action. of therolls when the rolls, a latch tor holding :the starting lever in, position to effect a rotati notthe rolls, a link havinga slot, a;pingon'the latch separating from, or approachingeach other, 7 a controlling lever for thedriving mechanism of the .rolls effective to "start or stop to receive the slot ofthev link, .nie ansfor connecting the linkto the iiifitzlnelltiOnetl 183 61,

whereby the link isi reciprocatedl asfthe lever oscillates, the .arrangementbeing such that the link will impart motion to the latch upon abnormal movement: ofwthe lever in "one direction, and means 'ijor ,,iinpai ting motion to the latchto d sengage :the; start ng levers upon abnormal movement of the lever inthe opposite directien.

3. In a lapplng inachinegcialenderl mounted for movementtoward and away fl'rom each, other, an oscillatably mounted lever moved by the :action: of the rolls when separating from. or approachingeach other, a controlling lever for the driving Y anism ofthe rolls effective to start or stop the rolls, a latch for holding the starting lever in position to elitecta rotation either rolls, aflexible element having one end con nected to the lever, a pulleypver wh ch the flexible element, operates, the said member being connected to the latch where: by abnormal movementof: the lever in one direction oscillates"thelatch, and means; for

operatingthe latch upon abnormal move ment of the lever in the oppositedirection. 4:. Ina lapping machinehaving calender rolls movable to approach andseparat'ewith relation to each other under-the influence of the lap, a shifting ;'mechanism: for the calender roll drive, an oscillatably mounted lever, means forcommunicating the above indicatedmotion of the calender rolls to the lever, means on one side-of the leversfulcrum for causing the shifting mechanism to disconnect the drive upon abnormal movement of the lever 1n one direction, and means on thG OPPOSIlZG side of the levers fulcrum for causing the shifting mechanism to. dis I connect the drlveuponabnormal movement of the lever inthe opposite direction.

' JAMES Y, FIELDS; f] 5 

